package jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;

public class JDBCDemo4 {
    public static void main(String[] args) {
        try (
                Connection connection = DBUtil.getConnection()//获取连接,封装了连接池技术,放在这里用于自动关闭连接
        ) {

            Statement statement = connection.createStatement();
            String sql = "DELETE FROM userinfo WHERE id = 3;";
            int num = statement.executeUpdate(sql);
            System.out.println(num>0?"删除成功":"删除失败");
        } catch (SQLException e) {
            e.printStackTrace();
        }

    }
}
